Parallel bench-vise.



No. 788,840. v PATENTED APR. 25, 1905.

G. B. TAYLOR.

PARALLEL 'BENCH VISE.

APPLIGATIoN FILED 116.15.1904.

` 3 SHEETS- SHEET 1.

110.788,34@ PATLNTLD APP.. 25, 1905.

G. B. TAYLOR. PARALLEL BENCH VLSL.

APPLICATION FILED AUG. 15.1904.

3 SHEETS-SHEET 2.

Il l

No. 788,340. PATENTED APR. 25, 1905. G. B. TAYLOR. PARALLEL BENCH V'ISE.

APPLIGATIoN FILED AUG. 15,1904.

` s SHEETS-SHEET a.

Figs).

Patented April 25, 1905.

PATENT UFFICI-3.

GEORGE BENJAMIN TAYLOR, OF BIRMINGHAM, ENGLAND.

PARALLEL BENCH-NISE.I

SPECIFICATION forming part of Letters Patent No. 788,340, datedAprl 25,1905.

vApplication filed August 15,1904. l Serial No. 220,833.

T0 all whom it may concern:

Be it known that I, GEORGE BENJAMIN TAY- LOR, engineer, a subject of theKing of Great Britain, residing at 43 Bartholomew street, Birmingham,inthe county of lVarwick, England, have invented certain new and usefulImprovements in Parallel Bench-Vises, of which the following is aspecification.

My invention relates to a parallel bench-vise in which the movable jaw(worked by a screw and screw-box to grip and release) is fitted to thefixed jaw so as to be free to be pushedV in and pulled out by hand toobtain a rough adjustment of the jaws, and comprises thehereinafter-described improvements therein.

In a vise as aforesaid my invention provides a simple and effectivefrictionally-operated coupling means between the rotatable screw and thescrew-box, whereby the said screw and screw-box can be m'ade to engageand disengage by a slight turning movement of the screw. The couplingmeans comprises a number of clips or clamps surrounding the screw orparts of it, so as to frictionally grip it, and a connecting-link or thelike between the said clips or clamps and the screw-box. The latter isadapted to move in a way with inclined sides pitched so as to assist theengagement of the screw or screw-box, the thrust end of the said wayholding the screw-box below the outside line -of screwengagement, andthereby effecting the whole engagement of the screw-box with the screw,particularly at the end farthest away from the. thrust end aforesaid.The frictionally-operated coupling means is capable of being carried outin various ways.

My invention also includes detail features for the securing of such avise to a bench and in the fitting of the handle by which the screw isturned to the head of the screw.

The improvements indicated in substance by the foregoing will by theaccompanying sheets of drawings and the description hereinafterappearing be made quite clear in several forms differing only in detailconstruction, the first form being represented on Sheet 1 by thelongitudinal section,Figure 1, the transverse section, Fig. 2, and thehorizontal sections, Figs. 3 and 4, and transverse sections The sectionFig. 2 is taken Fig. 4 is a Figs. 5 and 6.

per portion of the said jaw being cut away.

Fig 3 is a section of the movable jaw only, 55

the upper portion of the said jaw being cut away. Figs. 5 and 6 aredetail sections through thescrew and clips or clamps only.

With reference to Figs. l to 6, ais the fixed jaw, and c is the movablejaw, the shank c2 of 6o the latter being made to slide in the ordinaryway in a guiding-way a2 of the fixed jaw. f is the rotatable screw fortraversing the movablejaw in the fixedjaw, this screw having itsbearings in the said movable jaw at f2, f3,

and f4. d is ascrew-box fitted within the interior of the body part ofthe fixed jaw a to slide or move up and down in a guiding-way e, thesides of this way e being represented b the surfaces c e3, e* and c5,which are inc clined or pitched upwardly toward the handle end of thevise, this inclining or pitching assisting the full and com pleteengagement of the screw-box with the screw. This screwbox CZ is adapte-dto engage and disengage the screw f. The surface e* is a thrust-surfaceagainst which the forward end Z2 of the screwbox bears when the movablejaw is screwed up to close the jaws, this thrust-surface and forward endbeing so arranged that contact 8o between them is below the lowest lineof engagement of the screw-box wlth the screw,

' which has the effect when the movable jaw is screwed up of causing asure and whole engagement of the rear end @Z3 of the said screw- 8 5 boxwith the screw and also of preventing the said end Z3 sagging out ofengagement with the screw. A cross-web d* of the screwbox l is the partwhich is guided by the surfaces e2 e3 e4, this web being laterallyguided 9o by ends e@ e7 of the way c. (Represented in Figs. 2 and 4.)The sliding screw-box CZ hangs within the way e from a rod 5, whichforms a link between the said screw-box and two spring clips or clamps Land c', surrounding 95 parts of screw f, so as to frictionally gripthese said parts. The said clips, which are lined with leather or othersuitable material lf i2 and to which the rod g is `rigidly connected byriveting or other convenient means, Ioo

are clearly represented in cross-section by Figs. 5 and 6, the one beingprovided on the screw near the handle end and the other near theopposite end to the handle, the rod g coupling them. The clips embracethe parts of the screw with sufiicient tightness to, when the screw isrotated, lif't the screw-box d in its way into engagement with thescrew, and the screw only turns without imparting movement to the clipswhen the screw-box is stopped from being further lifted in its way, thefriction between the clips and the parts of the screw being at this timeovercome. The screw-box (l hangs onto the rod g by a hook-like piece(Z5. The clips /L and c' may be made so that the amount of tightnesswith which they grip the parts of the screw they surround can beadjusted. From the foregoingit will be clear that if' the screw fisturned in a direction to close the jaws c and c the screw-box d is bythe first turning movement of the screw lifted into engagement with thescrew f, both clips it and 27 turning together with the screw, and,further, that after the said screw-box has engaged the screw the lattercan continue to turn without carrying the clips wit-h it. In like mannerif' the screwf is turned in the reverse direction the clips /1/ and c'move with it to disengage the screw-box from the screw or to allow therod g to move so that the screw-box by its own weight can fall out ofengagement with the screw. Upon the under side of the base of' the fixedjaw a are provided a number of` rigid bosses or projections lto in thefixing of` the vise to a bench be let into the wood of' the bench forthe purpose of' preventing any horizontal displacement of' the vise solong as the holding-down bolts for fixing the vise to the bench are inposition. The handle-hole m2 in the head of the screw f is cut away atits middle part m3 to leave only the ends ofl the said hole for contactwith the shank n2 of' the handle 11 in this way lessening the chance of'the said handle sticking or jamming in the said hole as it moves fromend to end. The said sticking or jamming is quite common in the case of'the ordinary construction of handle end,

which is usually formed with a one-diameter handle-hole right through,this handle and hole after a time becoming so badly worn at theends'that the fingers get pinched between the handle and the worn-awayends of' the said hole.

In the second form of the invention, which is represented by thelongitudinal section, 7, and the transverse section, Fig. 8, only onefrictionally-gripping clip z' is applied to embrace the screw f, thisclip, however, having as part of' it a portion g to take the place ofthe rod in the previous form of the invention. The said clips differonly from the clip. in the previous arrangement inasmuch as it is madein one piece with the portion g, has alonger bearing on the screw,

and is of an open-work construction providing a number of' springtongues or pieces, such as '212, which have an independent frictionalcontact on the part ofthe screw they bear against. The screw-box (Zhangs from the portion g by a hook-like piece ci, as in the previousform, the said portion g running the length of the screw and beingapproximately semicircular in cross section, with a side ledge g2, uponwhich the end of' the hook Z5 rests.

In the third form of' the invention, which is represented bythelongitudinal section,Fig. 9, by the transverse section, Fig. 10, andby the sectional plan of the movable jaw only, Fig. 11, only onef'rictionally-gripping part vf is applied to the screw f, this partcarrying rigid with it the rod g, from which the screw-box l is hung inits way e. This part z' is a tubelike piece or sleeve fitting freelyaround a plain part of the screwf, it being adapted to make at its oneend, 2, frictional contact with the collar s, surrounding an adjacentpart of the screw to turn at all times with the screw, there being aleather or other contact 82 between the end 2 and the face of thecollars. The parte' abuts at its other end, 3, against a second collart, which is also car` ried upon the screw j', this beinga thrust-collar.The collar s is pressed into frictional contact with the part 71 by aspring u, this spring determining the amount of friction between thesaid collar and part. The said amount otl friction can, however, beadjusted by the turning of the abutment-collar t, the outer side 152 ofwhich is formed with a number of sinking-s of different depths f'or theengagement of a cross-peg w, carried by the screw f. The cross-peg,depending upon the sinkings it engages, forces the spring u into a moreor less state of compression, thereby decreasing or increasing theamount of f'riction between the collar s and the part 27 for theadequate operation of the screw-box (l. This form ofl the invention maybe carried into ef'- f'ect without the spring u and the adjustment ofthe thrust-collar t.

Inail the forms of' the invention described the engaging and disengagingmovements of' the screw box el are brought about by approximately' onesixth ofl the turn of the screw f.

The arrangement of the thrust-surface e* below the line of' screwengagement has another feature in addition to the one previouslydescribed-z'. e., it permits the movable jaw c to be removed from thefixed jaw a for cleaning, &c., by the simple disconnection of' thescrew-box from the rod g and the removal of the stop-peg fr, it beingseen from the drawings that all the parts carried by the shank c2 of themovable jaw and which must pass the topof' the said thrust-surface onsaid removal will be clear ofl the said surface.

The forms of' the invention described with IOO IIO

the drawings, 4particularly the one Figs.' l to 6, are the mostdesirable applications in vises of' the kind referred to; but it'will beunderstood that these forms can be modified with-- out departing fromthe invention.

Having now described my invention, what I claim, and desire to secure byLetters Patent, is*

l. In a bench-vise, the combination of a fixed jaw, a'movable jawworking in the fixed jaw, a rotatable screw carried by the movable jaw,a screw-box rising and falling in a guideway in the fixed jaw, africtionally-operated coupling means having a fixed position on saidscrew relative to longitudinal movement, and means carried by thecoupling means for actuating the said box.

2. In a bench-vise, the combination of a fixed jaw, a movable jawworking in the fixed jaw, a rotatable screw carried by the movable jaw,a screw-box rising-and falling in aguideway in the fixed jaw, aplurality of' clips encircling thescrew and longitudinally immovablewith respect thereto to frictionally grip the sanne` and aconnecting-link between the said clips and the screw-box for actuatingthe latter.

3. In a bench -vise, the combination of a fixed jaw, a movable jawworking in the fixed jaw, a rotatable screw carried by the movable jaw,a screw-box rising and falling in a guideway in the fixed jaw,frictionalgripping-clips on said screw, a bar connecting the said clips,and means for attaching said screw-box to said bar.

4. In a vise, the combination of a fixed jaw- Section, a movablejaw-section having a rotatable screw in said movable section, a screwboxlongitudinally immovable with respect to the fixed section, and anautomatic means having a fixed position on said screw and movabletherewith for causing' the screw-box to engage and disengage the screw.

5. In a parallel bench-vise, the combination ofl a fixed jaw, a movablejaw working' in said fixed jaw, a rotatable screw carried by the movablejaw, a screw-box rising and falling in a-guideway in the fixed jaw sothat when the screw engages the screw-box the thrust between the saidbox and the fixed jaw is below the lowest line of the screw engagement,frictionally-gripping clips on said screw and having a fixed positionrelative to longitudinal movement thereof', a bar connecting the saidclips, and means for connecting the said screw-box to the said bar.

6. In a parallel bench-vise, the combination of' a fixed jaw, a movablejaw working in said fixed jaw, a rotatable screw carried by the fmovable jaw, a screw-box rising and falling in a guideway 1n thefixedjaw, and means longitudinally immovable on the screw and providedwith a member between the Asaid screwV and the said box for actuatingthe latter.

7. In a parallel bench-vise, the combination of' a xed jaw having uponthe under side of its base a series of rigid bosses, a movable jawworking in said fixed jaw, a rotatable screw carried by the movable jaw,a movable member rising and falling in a guideway of the fixed jaw forgripping the said screw and a frictionally-operated connecting meanscoperating with the movable member and the said screw, andlongitudinally immovable with respect to the latter.

8. In a parallel bench-vise, the combination of a fixed jaw, a movablejaw working in said fixed jaw, a rotatable screw working in the movablejaw, a gripping member working in a guideway in the fixed jaw and anautomatic frictionally-operated coupling means having an elementlongitudinally immovable on the screw for actuating the said member,said element cooperating with the rotatable screw and the said member.

9. In a vise the combination of a fixed jawsection, a movable section,having a rotatable screw in said movable section,a movable screwbox insaid first-mentioned section,means movable with the screw for causingthe screw-box to engage and disengage the screw, and an automaticfrictional means f'or gripping the screw.

l0. In a vise the combination of a fixed jawsection, a movablejaw-section, having a rotatable screw in said movable section, a movablescrew-box in said first-mentioned section, means movable with the screwcausing' thev screw-box to engage and disengage the screw, an automaticfrictional means for gripping the screw, and guides for the screw-box.

l1. In avise having a movable jaw-section, a rotatable screw carried bythe said movable section, a movable box having a fixed position relativeto the longitudinal movement of the screw in one of the jaw-sections forengaging and disengaging the screw, automatic frictional grip-collarscarried by the screw, a spring for regulating the friction, and meansmovable with the screw carried by the collars for causing the said boxto engage and disengage the screw.

12. In a parallel bench-vise, a fixed jaw, a

`movable jaw having a hollow and open-bottom shank to 'work in and outof` the said fixed jaw, a rotatable screw applied to the movable jaw inthe interior of' said shank to slide with the said movable jaw, ascrew-box provided in the fixed jaw below the rotatable screw anddisposed so that it will permit sliding of the movable jaw from thefixed jaw, and frictional means applied to the screw to lift thescrewbox into engagement and allow it to fall out of' engagement.

13. In a bench-vise, a fixed section having a jaw, a movable sectionhaving a jaw, mounted in the lfirst-mentioned section, a rotatable screwin said movable section, means having a fixed position relative to thelongitudinal movement of' the screw for engaging and dis- IOO ISO

engaging the same, and an automatic frictional gripping means having amember on the screw and movable therewith for actuating thefirst-mentioned means.

14C. In a bench-vise, jaws, at least one of the same being movable, arotatable screw carried by said movable jaw, a member having a fixedposition relative to the longitudinal movement of the screw for engagingand disengaging the same,and a frictionally-gripping means including anelement carried by the 'screw and movable therewith for automaticallyactuating the said member.

l5. In a parallel bench-vise, the combination of a fixed jaw, a movablejaw working in

